<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>demo</title>
</head>
<body>
  <h1>demo ok !</h1>
  <h2>获取数据：<span th:text="${msg}"></span></h2>

</body>
</html>